Window-ventilator.



J. M. HIMES` WINDOW VENTILATOR.

APPLICATION FILED Nov. 19, 1913.

1,093,415. Patented Apr-.14,1914,

s 45 o a 7 15H6 a 4 www ence being had to the -citizen of c the United States,

UNITED STATES PATENT onirica.,-

JAMES M'. "EINES, 0F WASHINGTON, DISTRICT OF COLUMBIA'.

WINDOW-VENTILTOR.

Specification of Letters Patent. Application A iled November 19, 1918. Serial No. 801,976.

Patenten npr. ia, ieri.'

accompanying drawings, and to letters or figures of reference Ving parallel with specification.

igure 1 is avertical transverse section of the invention 'as applied'with t e lower sash raised, and the invention placed thereunder. Fig. 2 is n inside face view of the` invention. Fig. 3 is a section on the line 33, Fig. l. VFig. 4 p tion of the invention as applied a slot of the lower'window sash rail.

The object of the invention is to provide an improved Ventilating appliance for windows, and the invention consists in the novel construction and combinations of' parts as ereinafter set forth. x In the accompanying drawings illustrating the invention, the numeral 1, designates the lower rail of the llower window sash to which the invention is usually applied, said rail having therein a longitudinal slot 2. Fitting within the slot 2 in such a manner with the sides of marked thereon, which form a part of this composed of `a plurality of continuous metal strips, each strip being bent to form a p ality of oppositely disposed angles usually of about sixty` degrees each,

other to form a series of overlying zig-zag Ventilating passages. each composed of four leaves having three bends, the outer of said leaves having downward and'outward inclination in opposite directions from within the slot 2 to shed water and dust, and the two inner forming a channel, usually. ha

metal strips are rigidly connected to end walls 5',

serted within the .rail slot to limit the inward movement of the frame.

is a vertical transverse secplu- said strips be-` aiid separated from each- The metal strips are plate 7 is then in place, suitable securinor f8 being provided to holdbthe cover plate to the sash rail.v

of. about the same size as the pocket, and

being slidable upon each other, so that when t eyarb moved outward, as in opening the Ventilating passageway more or less as may be required, they will be received to such extent as may be necessary in the pockets 10 at the ends of the cover plate. the door leaves are moved to the extent of movement `allowed outward, to entirely open the Ventilating passage-ways, the leaves will be entirely received within the end pockets, out of sight. The doors are provided with operating knobs and without in series from `the pock- In buildings already completed, the invention may be applied to an oblong frame 16, to be placed below the lower sash, the lower rail of which is brought down upon the frame to hold it in position, as shown in Fig. 1 of the drawings.

at I claim is 1. In afwindow ventilator, an outer carrying frame. h

provided with a series of overlying zig-zag air passages, and an inner vertical cover frame for said slot having'end pockets, and

adjustable verticaldoor leaf sections eng regulated degree.

2. In a vwindow ventilator, an outer carrying frame having a. longitudinal slot, a ventilator' frame fitting within said slot and provided `with 'a series of continuous overlying zig-zag bent metal strips parallel with 2 1,093,415 and spaced apartl from each other to 4pi'ouponeach. other toelose said passages to a 10 vide zig-zag airpassages, each of said strips regulateddegree. having a centralV inner channel and rout- In testimony whereof I aix my signawardly and downwardly inclined leaves at ture, in presence of two witnesses.

the sides, said channel having a erforated.

bottom, and an nnel vertical oover frame `l JAMES M HMES' for said slot having end pockets and ad- -Witnessesu jnstable vertical door leaf sections engaging FLORENCE GUsDoRF, l said pockets and `each other and sliding WILLIAM R. BAUM. v n 

